Research Article
Stability Analysis of Water-Resistant Strata in Karst Tunnel Based on Releasable Elastic Strain Energy
Table 2
Releasable elastic strain energy at each monitoring point of the water-resistant strata under different cave spans (MJ/m3).
| Karst cave span D/m | Monitoring point position | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 4 | 0.088 | 0.058 | 0.045 | 0.039 | 0.037 | 0.037 | 0.039 | 0.042 | 0.048 | 0.056 | 8 | 0.099 | 0.080 | 0.066 | 0.059 | 0.055 | 0.055 | 0.057 | 0.061 | 0.068 | 0.071 | 12 | 0.091 | 0.097 | 0.084 | 0.077 | 0.074 | 0.074 | 0.078 | 0.086 | 0.099 | 0.071 | 16 | 0.085 | 0.106 | 0.098 | 0.094 | 0.093 | 0.096 | 0.104 | 0.122 | 0.113 | 0.072 | 20 | 0.082 | 0.107 | 0.111 | 0.111 | 0.114 | 0.124 | 0.141 | 0.160 | 0.113 | 0.073 |
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